The new game sees players discard their holdings across two decks, not just one and according to Mattel:

"To start, there are two piles in the middle of the participants, and on each player’s turn they can play on both piles with either one or two cards. In a fun twist, if a player has two cards that add up to the number of the card in the center pile, they are able to put down both cards."

(Image: Mattel)

To carry on the "two" theme, the game took TWO years to develop to make it different to the original. You also have to yell 'DOS' when you've gotten rid of all of your cards.

It's unclear whether this is when you end with one card or two, but whatever the outcome, we'll be making up our own rules anyway!